Engine, Transmission.. HELP

Guiseppe · 05-04-2008, 03:02 PM

Drove my truck from Tucson-Phoenix and back a week ago. That's the longest drive I have taken since lifting it. I noticed on my way there and back I would be doing about 80mph and the truck wanted to downshift. Ever since I have been back home it's been running crappy, climbing a tiny hill the truck is running a higher rpm, downshifts are more frequent and even normal shifts sometimes seem sloppy. Anyone encounter this or have an idea, I need help.. Thanks

37L1 · 05-04-2008, 03:47 PM

Try an ECU reset, can't hurt anything. Check your tranny fluid.

How many miles on your rig?

Guiseppe · 05-04-2008, 05:21 PM

Did both, little if any change. Fluid looks ok. 57000 miles

37L1 · 05-04-2008, 05:37 PM

Quote:

Originally Posted by Guiseppe

Did both, little if any change. Fluid looks ok. 57000 miles

Maybe you need a fluid change? Check the screen.

Do you think the lift has something to do with it?

Guiseppe · 05-04-2008, 05:55 PM

How and where do you check the screen, I have had the lift for 1 1/2 years. I did remember I have driven just as far one other time about a year ago and there was no problems

Shane06fl · 05-04-2008, 05:56 PM

Don't know the terrain or your tire size but with larger tires and hilly terrain your trany will have a hard time holding 5th or keeping the TQ convertor locked. You say the engineis running crappy, maybe some watered down gas.

resetting ECU might help.

Guiseppe · 05-04-2008, 08:09 PM

ECU reset done, little or no improvement, been running 35" mud terrains for 1 1/2 and now all of the sudden, this is happening. I'm on my second tank of gas, so I don't know if that's it. Anything else,also why would torque converter just start acting up, is that normal

**bbomar** · 05-04-2008, 09:04 PM

Try cleaning your MAF sensor. Might help.

**Nissan Mike** · 05-04-2008, 09:32 PM

Get it to a dealer before your powertrain warranty expires at 60K

Guiseppe · 05-05-2008, 07:39 AM

where is the MAF sensor

37L1 · 05-05-2008, 07:42 AM

Quote:

Originally Posted by Guiseppe

where is the MAF sensor

Located in the air tube from the filter to the throttle body.

Treat it with care.

Guiseppe · 05-05-2008, 08:10 AM

I think I remember seeing it when I put on my K & N. Can you clean it or something

**Carbeaux** · 05-05-2008, 08:12 AM

I wouldn't suggest trying. As 37L1 stated, handle it with care.

There are (I believe) some spray cleaners out there for them, but I don't think I'd risk it.

Guiseppe · 05-05-2008, 08:49 AM

staring from the front of the truck it is in the throttle body, right. does it open or something. I'm looking at it and it is closed or does it not move.

**Carbeaux** · 05-05-2008, 08:51 AM

It's not in the TB. It's closer to the air box.

Engine, Transmission.. HELP - being discussed at Nissan Titan Forums in the Titan Engine, Transmission & Drivetrain section.